Palazzo Mozzi, Gothic palace in Oltrarno district, Florence, Italy

Palazzo Mozzi is a 13th-century palace-fortress at Piazza de' Mozzi, where Via di San Niccolò and Via dei Bardi meet. Its long facade of small squared stones is interrupted by a tall crenellated tower, and the ground floor has a continuous row of arched openings with projecting roofs. A large shield with the Mozzi coat of arms, a Cross of Toulouse without enamels, sits at the centre of the facade.

The palace was built between 1260 and 1273 as a defensive structure for the Ponte alle Grazie bridge. The Mozzi family, supporters of the Guelph faction, constructed it as a fortress at this strategic riverbank location.

The palace takes its name from the Mozzi family, papal treasurers who hosted Pope Gregory X here in 1273 for the peace between Guelphs and Ghibellines. In 1861 it became the first seat of the Masonic Loggia Concordia. Since 2020 it has housed the Regional Secretariat for Tuscany and the Regional Directorate of National Museums.

The palace sits at Piazza de Mozzi near Ponte alle Grazie in the Santo Spirito quarter. The area is easily walkable and well connected by local streets leading to nearby attractions.

The palace's main façade bears a large shield with the Mozzi coat of arms showing the Cross of Toulouse, carved here without enamel colours. Inside, portals taken from various city structures dismantled during Florence's 19th-century Risanamento were built into the rooms.